Fun Red Panda Games

A small collection of games, built by me, and hopefully you too. This repo started as a single Python Battleship implementation to play and has grown into a home for multiple games, a browser site, optional accounts, and online rooms.

Play in your browser: funredpandagames.com

Table of Contents

• Playing in Your Browser
• Accounts and Online Play
• Games in This Repo
  • Battleship
  • The Questions
  • Number Guesser
  • Chess
  • Reaction Test
  • Bamboo Bonk (Coming Soon)
• Project Structure
• Requirements
• Installation
• Hosting and Deployment
• Repository Automation
• Contributing
• Security
• License
• Credits
• Contact

Playing in Your Browser

Battleship, Number Guesser, Chess, and Reaction Test all have browser versions in the docs/ folder, alongside the original terminal versions in mainfile/. The Questions has only ever lived in the browser.

The browser versions of the Python games run entirely client-side using Pyodide (Python compiled to WebAssembly), so the game logic runs as real Python inside the page. The Questions is written in JavaScript.

The live site at funredpandagames.com is the full experience. Accounts and online rooms need the site's backend, so they only work there. Every game except online rooms and accounts also works when you open the files locally.

To test the browser versions locally, run:

cd docs
open index.html

This lets you pick any game and play it locally in your browser. If you can't open a browser, you can still play the terminal versions (except The Questions).

Accounts and Online Play

The live site has two features that need its backend, a set of Cloudflare Pages Functions in functions/ backed by a Cloudflare D1 database.

Accounts

• Create an account or log in from the button in the top right of the game menu, which opens account.html. Once you're logged in, the button shows your username.
• Usernames are 3-20 characters (letters, numbers, and underscores). Passwords are 8-128 characters.
• Passwords are salted and hashed with PBKDF2 (SHA-256) and never stored in plain text. Sessions use an HttpOnly cookie and last 30 days.
• Your username is used to pre-fill your name when you create or join an online room.

Online rooms (The Questions)

• Create a room to get a 5-character code, then share it with up to four friends.
• The host sets the number of bots, Hard Mode, and Play to Last Place, then starts the game once at least two humans have joined.
• Games stay in sync by polling the server, and the host's browser runs the bots' turns.
• Online rooms only use multiple-choice and true/false questions, so nobody needs to judge answers out loud.
• Rooms are deleted after 24 hours of inactivity, and a game can only be joined while the room is still in the lobby.

Online rooms (Chess)

• Pick Online on the Chess page, then create a room to get a 5-character code, or join a friend's room with theirs.
• Rooms hold two players. The game starts as soon as the second player joins, and colors are assigned at random.
• The server checks every move against the rules of chess, so a modified browser can't make illegal moves. Check, checkmate, stalemate, insufficient material, threefold repetition, and the 75-move rule all end the game automatically.
• Either player can resign or offer a draw. The other player can accept or decline.
• After a game ends, either player can start a rematch, and the colors swap.
• Games stay in sync by polling the server. Rooms are deleted after 24 hours of inactivity or when a player leaves.

Games in This Repo

Battleship

Classic Battleship, playable in your terminal or your browser, against a bot or in two-player pass-and-play.

Features

• Classic Battleship gameplay (place ships, call shots, sink the enemy fleet)
• Single-player mode vs. a bot opponent that hunts adjacent cells once it lands a hit, then follows the ship's orientation instead of firing blindly
• Two-player pass-and-play mode, with a screen that hides your fleet while the device is passed
• Per-ship status lists showing which ships are afloat or sunk
• Coordinate-based input/clicks with validation
• A "Randomize My Fleet" option for instant setup, in both the terminal and browser versions

Run it in your terminal

cd mainfile/Battleship
python3 Battleship.py

Gameplay basics

• Board coordinates use letters for columns and numbers for rows (e.g., A1, B7).
• Ship sizes: Carrier (5), Battleship (4), Destroyer (3), Submarine (3), and Patrol Boat (2).
• Fire at a coordinate; the game reports Hit, Miss, or Sunk.
• Win by sinking every ship in the opposing fleet.

The Questions

A browser-based trivia game for 2-5 players (any mix of humans and bots, so you can play solo against computer opponents), inspired by classic wedge-collecting trivia board games. You can play on one device or online with friends in a room.

Features

• A 36-space board with six trivia categories: Geography, History, Science, Entertainment, Sports, and Arts & Words
• Roll a die, choose a direction, and answer whatever category you land on
• Open-answer, multiple-choice, and true/false question formats
• A "deciding question" mechanic: once you've collected all six wedges, the other players choose your final category
• 2-5 players, including any mix of human and bot players
• Optional Hard Mode: missing a question in a category you've already won costs you that wedge
• Optional Play to Last Place mode: keep playing until everyone but one player has finished
• Two ways to play: "On this device" (pass the device around, all question formats) and "Online" (rooms with codes, multiple-choice and true/false only)

Play it

cd docs
open thequestions.html

Local play works offline. Online rooms need the live site.

Number Guesser

A simple guessing game where you try to guess a randomly selected number within a range you choose. Playable in your terminal or your browser.

Features

• Simple number guessing mechanics
• Feedback on each guess (too high, too low, or correct)
• Adjustable range
• Replay functionality in the browser version

Run it in your terminal

cd mainfile/NumberGuesser
python3 Creator.py

Chess

A chess game built on python-chess (a huge thanks to them), handling move legality, board state, and game rules. It includes an optional computer opponent, and the browser version also has online rooms for playing a friend.

Features

• Full standard chess rules via python-chess (legal move generation, check/checkmate detection, castling, en passant, promotion)
• Play moves by typing (terminal) or clicking (browser). In the terminal, enter the square a piece is on and the square it's moving to (e.g. e2e4). Castling is entered the same way, by moving the king two squares toward the rook.
• Resign at any time, or offer a draw
• Optional bot opponent, choice of color (White, Black, or Random), and difficulty level
• Browser only: an Online mode with rooms and codes, so you can play a friend on a different device (see Accounts and Online Play)

A note on difficulty (the terminal and browser versions work differently):

• Terminal version: Easy is a lightweight built-in minimax bot (~600 elo, no external dependencies). Normal (~1400 elo) and Hard (~2000 elo) hand off to the Stockfish engine.
• Browser version: since a browser can't launch an external engine process, all three difficulties (Easy, Normal, Hard) are the same homemade minimax bot at increasing search depth and decreasing blunder chance.
• The browser version currently always promotes pawns to a queen; underpromotion isn't supported.

A note on online chess: online rooms don't use python-chess. The server runs its own small JavaScript rules engine in functions/_lib/chess.js to check moves, and like the rest of the browser version it always promotes pawns to a queen. Online rooms only work on the live site.

Run it in your terminal

cd mainfile/Chess
python3 board.py

When you start the terminal game, you'll be asked whether you want to play against the bot, which color it should play (or Random), and which difficulty level (Easy, Normal, or Hard). Only the Normal and Hard levels need Stockfish. If it isn't installed, the game tells you and continues as a human vs. human game.

Installing Stockfish

(terminal Chess only; the browser version doesn't need this)

macOS

brew install stockfish

Windows

winget install Stockfish.Stockfish

Or download the executable from stockfishchess.org/download and either add it to your PATH or point STOCKFISH_PATH in mainfile/Chess/board.py at the full path of the executable.

Linux (Debian/Ubuntu)

sudo apt install stockfish

Linux (Fedora)

sudo dnf install stockfish

Linux (Arch)

sudo pacman -S stockfish

Any OS, manual install

Download a prebuilt binary from stockfishchess.org/download, unzip it, and either add it to your PATH or set STOCKFISH_PATH in mainfile/Chess/board.py to its full path.

Reaction Test

A quick game that measures how fast your reflexes are, in your terminal or your browser. It waits a random amount of time (1-30 seconds), tells you to go, then reports how long it took you to react.

Features

• Random wait time before the "go" signal
• Measures and reports your reaction time
• The browser version tells you if you clicked too soon
• Simple, single-run gameplay

Run it in your terminal

cd mainfile/Reactiontest
python3 Reaction_test.py

Bamboo Bonk (Coming Soon)

A solo browser game that is still in the works and isn't playable yet. Critters pop out of the bamboo grove and duck back down fast. Bonk as many as you can before time runs out, then try to beat your best score.

Project Structure

.
├── docs/                 Browser games and the site (served as the website)
│   ├── index.html        Game menu
│   ├── account.html      Log in / create account
│   ├── battleship.html
│   ├── chess.html
│   ├── numberguesser.html
│   ├── reactiontest.html
│   ├── thequestions.html
│   └── favicon.svg
├── mainfile/             Terminal versions of the games
│   ├── Battleship/
│   ├── Chess/
│   ├── NumberGuesser/
│   └── Reactiontest/
├── functions/            Cloudflare Pages Functions (backend)
│   ├── _lib/             Shared auth, room, and chess rules helpers
│   └── api/              Account endpoints and room endpoints
├── schema.sql            D1 database schema
├── requirements.txt      Python dependencies (terminal Ch)ck)
└── .github/              Workflows, issue and PR templates, Dependabot

Requirements

• Browser versions (Battleship, The Questions, Number Guesser, Chess, Reaction Test): any modern web browser. No installs required. The first load fetches the Pyodide runtime (and, for Chess, the chess package), so it needs an internet connection.
• Accounts and online rooms (including online Chess): the live site at funredpandagames.com and a secure (https) connection.
• Terminal Battleship: Python 3 or newer, and a terminal
• Terminal Number Guesser: Python 3 or newer, and a terminal
• Terminal Chess: Python 3 or newer, and the chess package (see Installation). The Stockfish engine is only needed for Normal/Hard bot difficulty.
• Terminal Reaction Test: Python 3 or newer, and a terminal

Installation

To play in your browser, either visit the live site (link at the top of this README) or clone the repo and open the menu locally:

git clone https://github.com/RedPandaGuy1234/FunRedPandaGames
cd FunRedPandaGames/docs
open index.html

To play the terminal versions:

1. Clone the repository:

git clone https://github.com/RedPandaGuy1234/FunRedPandaGames

2. Enter the project directory:

cd FunRedPandaGames

3. Install dependencies (needed for terminal Chess):

pip install -r requirements.txt

4. If you want to play terminal Chess against the bot on Normal or Hard difficulty, also install the Stockfish engine. See Installing Stockfish. Easy mode works without it.

5. Regularly update it:

git pull

6. Jump into whichever game you want to play. See Games in This Repo above for how to run each one.

Hosting and Deployment

The site is hosted on Cloudflare Pages at funredpandagames.com and deployed from GitHub with a Wrangler-based workflow.

• The static site is the docs/ folder.
• The backend is the functions/ folder (Pages Functions), which serves the /api/... routes for accounts and online rooms.
• Data (users, sessions, and online rooms) lives in a Cloudflare D1 database bound to the functions as DB. Its tables are defined in schema.sql.

Repository Automation

• Releases: release-please builds the changelog and version numbers from PR titles. See CHANGELOG.md.
• PR title check: a workflow requires PR titles to start with other:, cont:, feat:, feat!:, or fix:.
• Labels: pull requests are labeled automatically (Docs, Github, Terminal) based on the files they change.
• Security scanning: CodeQL and Bandit run on pushes, pull requests, and a weekly schedule.
• Dependencies: Dependabot checks Python packages and GitHub Actions weekly.
• CI: a Node-based CI workflow and a dependency check run when a package.json is present.

Contributing

Please look at the contributing document for further details, including how to name your pull request so it shows up in the next release. Please also review our Code of Conduct.

Security

If you find a vulnerability, please don't open a public issue. See SECURITY.md for how to report it privately.

License

This project is released under the GPL-3.0 License. See LICENSE for details. This license applies repo-wide unless a specific game's folder states otherwise.

Credits

This project depends on the python-chess library, the Stockfish chess engine, Pyodide, and Cloudflare for hosting.

Contact

Maintainer: RedPandaGuy1234 GitHub: https://github.com/RedPandaGuy1234